I have been watching your videos over the past week and I am super impressed with the quality of your repairs. I am an amateur radio operator and have been in radio repair for a short time as a young man, The care and skill you provide is just astounding. I may send some of my boat anchors to you, I wish I wasn't so broke I would send them all to you!!!N5FJK
Thank you for those very kind words. I try and keep things simple so folks can follow along without all the high technical stuff. I appreciate comments like this.
LOL. You found my magnetic test lead adapter. Still have my black one but noticed the red one grew feet. Looks like it was a hitchhiker. :) I have more of them. Feel free to keep it. So you know what its for, one side just slips on the end of a normal test lead tip and then you can just use the magnetic end and stick it on the chassis. Makes a convient way to hook up to chassis ground.
As always a great video on the FT-101. Really enjoying this series on the Boat Anchor we all love ... and according to the historians this is the proper time of year celebrate Christmas anyways :) So it's all good!
Thanks for that bit of history my friend. Just not enough information on the web for folks. This is why I am doing this series. To get as much out there as possible,
Buddy, I know you will be glad to change out the white "chicken head" knob. Lol! That sticks out like a sore thumb! I've had a 101E and 101EE, and still have my 2100B linear amp. Nice radios. 73...Dan w4mnc
You got that right Dan. I hate that white chicken head on the rig. Was just about to go out and change them tonight. But have to work this week end :( Yes great radios.
Be VERY careful with using epoxy on that choke! In the 1980s, when I was a radio/tv engineer for KUAT, a choke (wound on a foot long, 3 in diameter, phenolic tube), in the output of the 50 kW AM (1550 kHz) xmttr got "roasted," I tried to repair it. I removed the darkened surface and applied a thin coating of "corona dope." A few days later, the choke burned up. I think it was due to the phenomenon of "dielectric conduction." Many materials, which are very good insulators for DC, conduct at RF. It's also the way capacitors work. I think epoxy may be a material that behaves that way
maybe down the road do a class on how to make an extender board, great segment as usual!! look forward to the rest I have an ft-101b, looking for a schematic for an Fv101b the VFO external . if you know where I can download a copy let me know thanks again great job!!
Thought you would like the meter. Have several of them and thought I would share the B&K wealth. That was actually one of my daily drivers for several years. Hope it is as reliable for you as it was for me.
The B&K VTVM looks very similar to an RCA Senior. Nice Yaesu cabinet that Mike sent you. You don't know of a good matching green paint for the Yaesu? 👍
That BK sure looks like the old RCA Senior VoltOhmyst I used to have...having at least one analog meter on the bench is always useful (hard to see a swing on a DMM!). BTW, AO7 is still alive and kicking up there! 73 - Dino KL0S
I love an analog meter. And this 177 will fit right in. Love the big scale on it. Been a year since I have been on AO-7. Had a regular sked on it for quite some time. There were a few operators I chatted with a lot on there. Fun times and using the 736 made it easy.
Around 800 volts. And is why it has to be replaced. As burnt as it is will change the inductance quite a bit. Will not be long before it catches on fire or becomes a straight conductor. This is what happens to RF chokes when the tubes are constantly on and turning cherry red.
I do watch Mike's repeat radio part repair and I also watch yours and you guys are both Geniuses so which one of you guys will taking my job all I want to do is get myself cleaned going she's my Icom 211 and I really really really want play machine to go I won't my rig up and running just don't know anybody it's a dying art so you got to beg and plead for I guess you know so I'm begging and pleading to you do you know anybody or can you do it for me what do you want
If it is in fairly good shape and the price is right I say get it. Probes are not a problem. Find them on ebay all the time and very easy to roll your on. Not difficult at all.
Much appreciated. My poor old FTDX-560 is an eBay find too. The good tubes had been removed. The sideband carrier oscillator crystals were both gone. The 100kHz oscillator crystal was gone. I had Quartzlab make me new ones. They made 2 of X-301, the 100kHz oscillator crystal for some reason so I have an extra. I recently rebuilt the power supply board with higher wattage resistors and higher voltage diodes. I'm still going to switch the HV transformer tap over to a good bit lower voltage to save the sweep tubes. I'm pretty much following your lead on the rebuild even though it's a different radio (sort of).I'll fix the PSU first then start working my way through it section by section. Hayseed Hamfest made me a real nice set of HV electrolytics cans. They don't look original but they'll work and I don't have to try to stuff caps in the already crowded power supply bay. The radio had ben scavenged a little. I'm missing one parasitic suppressor but I'm a long way from needing that. I'll be happy if it will learn to talk again 73 NE5U Mike
Sounds like it is in good hands Mike. You follow it just like you said and all will be fine. One stage at a time. Good deal on the HH capacitors. Cannot go wrong with them. Sure they cost a little more but many miles will be added to the outcome. Keep us updated on it and thanks for sharing.
Mike seems like a good guy! Very knowledgeable in electronics.
He is a great guy and a good friend to have. One of the best techs I know.
Pretty generous of Mike, thanks for showing & telling us about it all!
Thank you., I agree he is the best!
I have been watching your videos over the past week and I am super impressed with the quality of your repairs. I am an amateur radio operator and have been in radio repair for a short time as a young man, The care and skill you provide is just astounding. I may send some of my boat anchors to you, I wish I wasn't so broke I would send them all to you!!!N5FJK
Thank you for those very kind words. I try and keep things simple so folks can follow along without all the high technical stuff. I appreciate comments like this.
LOL. You found my magnetic test lead adapter. Still have my black one but noticed the red one grew feet. Looks like it was a hitchhiker. :) I have more of them. Feel free to keep it. So you know what its for, one side just slips on the end of a normal test lead tip and then you can just use the magnetic end and stick it on the chassis. Makes a convient way to hook up to chassis ground.
Little ting caught a free ride lol. It will come in handy. Things are part parasites!...
+The Radio Shop
Its a electronic tick.
ROFL!
Mighty nice Mike! Great looking 177 too. Thumbs up Bud!
Very nice of him my friend. You know, it is so good to have friends. Thanks for watching Paul.
Nice of Mike to send this along. I haven't seen any new videos from Mike in a while. Has he quit the business? 73 from K9POW in eastern Tennessee.
As always a great video on the FT-101. Really enjoying this series on the Boat Anchor we all love ... and according to the historians this is the proper time of year celebrate Christmas anyways :) So it's all good!
Thanks for that bit of history my friend. Just not enough information on the web for folks. This is why I am doing this series. To get as much out there as possible,
Good guy our Mike! Great looking stuff Buddy! 73
Yes he is one of the best my friend. Always good to have friends.
you are so right ...
Buddy, I know you will be glad to change out the white "chicken head" knob. Lol! That sticks out like a sore thumb! I've had a 101E and 101EE, and still have my 2100B linear amp. Nice radios. 73...Dan w4mnc
You got that right Dan. I hate that white chicken head on the rig. Was just about to go out and change them tonight. But have to work this week end :( Yes great radios.
Be VERY careful with using epoxy on that choke! In the 1980s, when I was a radio/tv engineer for KUAT, a choke (wound on a foot long, 3 in diameter, phenolic tube), in the output of the 50 kW AM (1550 kHz) xmttr got "roasted," I tried to repair it. I removed the darkened surface and applied a thin coating of "corona dope." A few days later, the choke burned up. I think it was due to the phenomenon of "dielectric conduction." Many materials, which are very good insulators for DC, conduct at RF. It's also the way capacitors work. I think epoxy may be a material that behaves that way
maybe down the road do a class on how to make an extender board, great segment as usual!! look forward to the rest I have an ft-101b, looking for a schematic for an Fv101b the VFO external . if you know where I can download a copy let me know thanks again great job!!
Great suggestion!
Thought you would like the meter. Have several of them and thought I would share the B&K wealth. That was actually one of my daily drivers for several years. Hope it is as reliable for you as it was for me.
Thanks Mike, I don't like it, I love it. Very clean and works great. Thanks a million!
Mike,
You really came through for Buddy. :-)
The B&K VTVM looks very similar to an RCA Senior. Nice Yaesu cabinet that Mike sent you.
You don't know of a good matching green paint for the Yaesu? 👍
That BK sure looks like the old RCA Senior VoltOhmyst I used to have...having at least one analog meter on the bench is always useful (hard to see a swing on a DMM!). BTW, AO7 is still alive and kicking up there! 73 - Dino KL0S
I love an analog meter. And this 177 will fit right in. Love the big scale on it. Been a year since I have been on AO-7. Had a regular sked on it for quite some time. There were a few operators I chatted with a lot on there. Fun times and using the 736 made it easy.
I am only 18 years old but I prefer my good ole Simpson 260 or my old Heathkit vacuum tube voltmeter to any DMM
It's too bad I can't find extender boards for my Fannon Fanfare 880dx. But, it does give me an idea for building the boards, thanks.
Should be fairly easy. Good luck with that
That magnet lead is so you can park a meter lead to the chassis no?
Does that coil have HV across it in operation? I generally don't mess with RF coils unless they are open or damaged.
Around 800 volts. And is why it has to be replaced. As burnt as it is will change the inductance quite a bit. Will not be long before it catches on fire or becomes a straight conductor. This is what happens to RF chokes when the tubes are constantly on and turning cherry red.
Good Stuff. :)
Hi Sue, Have not seen you in a while. Always a pleasure.Thanks
good👍🙂
nice 177 like mine like thyy dont have battery inside My 177 came with a rf probe also
Cool Dennis. Yes glad they do not have an internal battery. Less to worry with. Good meters! Thanks
Lol its more of a case of what parts of the radio did you sell him back........you near have the lot !! haha
LOL
I do watch Mike's repeat radio part repair and I also watch yours and you guys are both Geniuses so which one of you guys will taking my job all I want to do is get myself cleaned going she's my Icom 211 and I really really really want play machine to go I won't my rig up and running just don't know anybody it's a dying art so you got to beg and plead for I guess you know so I'm begging and pleading to you do you know anybody or can you do it for me what do you want
I have a dumb question for you...when using coax/BNCs and such with your scopes, sig gens, and other test equipment, do you use 50 or 75 ohm material?
Hi Philip. Not a dumb question at all. I actually use both. 50 and 75 ohm cables. Depending on what I am doing at the moment.
I don't know if I should go and buy the Sylvania VTVM I found; it has no AC probe with it.
If it is in fairly good shape and the price is right I say get it. Probes are not a problem. Find them on ebay all the time and very easy to roll your on. Not difficult at all.
is that Dynascan a FET VM?
Paddy
PS scrap that.... seen it is a VTVM
It is all tube. So in a way yes, just like FET.
Buddy,
Yeah, it looked a bit 'modern' for a VTVM, and I only saw the bottom of it at the end of the video (where it says it is a VTVM...)
Paddy
I need the top to the PA cage of my FTDX-560 that I'm trying to bring back from the dead
We will be on the look out for you.
Much appreciated. My poor old FTDX-560 is an eBay find too. The good tubes had been removed. The sideband carrier oscillator crystals were both gone. The 100kHz oscillator crystal was gone. I had Quartzlab make me new ones. They made 2 of X-301, the 100kHz oscillator crystal for some reason so I have an extra. I recently rebuilt the power supply board with higher wattage resistors and higher voltage diodes. I'm still going to switch the HV transformer tap over to a good bit lower voltage to save the sweep tubes. I'm pretty much following your lead on the rebuild even though it's a different radio (sort of).I'll fix the PSU first then start working my way through it section by section. Hayseed Hamfest made me a real nice set of HV electrolytics cans. They don't look original but they'll work and I don't have to try to stuff caps in the already crowded power supply bay. The radio had ben scavenged a little. I'm missing one parasitic suppressor but I'm a long way from needing that. I'll be happy if it will learn to talk again 73 NE5U Mike
Sounds like it is in good hands Mike. You follow it just like you said and all will be fine. One stage at a time. Good deal on the HH capacitors. Cannot go wrong with them. Sure they cost a little more but many miles will be added to the outcome. Keep us updated on it and thanks for sharing.
if you know of a website good for manuals like the vf-101 please let me know